A fastening strap also ensures that your device is held in place securely without slipping. The 20 litre lockable main compartment offers additional space for documents and personal items. Save space by storing your bottle and umbrella in the side pockets. Mobile accessories such as your smartphone, business cards, pens and so on are always within easy reach in the zip pocket on the front. The comfortable shoulder straps and handle make the backpack very easy to carry. All in all, a functional carrying solution for reliable protection both in a professional and private capacity. BASE XX emphasises the durability of the product with an extended five year guarantee.